Rotten to the Core, Where next?

Okay, I completed the story quest Rotten to the Core in the chain Allemantheia but I must have missed something because the next step is "not yet unlocked." The log states I finished the quest, gives a brief description of what I did, but then nothing else. Any ideas? Thanks in advance!

Okay, that makes sense and you are right it does say to finish a quest in the Zenobia chain. Unfortunately, I don't have that chain even listed so I wasn't sure what it meant. You wouldn't happen to know where I can pick up the Zenobia chain do you? Right now, the only chains I have uncompleted are Allemantheia and Traces of the Gods. Must have missed picking up Zenobia completely somewhere.